Resin-platinum complex and resin-supported platinum cluster catalyst

A method for producing a resin-supported platinum cluster complex comprising the steps of:

• (a) forming a platinum complex represented by the general formula (chemical formula 2)
• R1NR22—PtX3-nR3n,
• wherein R1 comprises a carrier and a hydrophilic polymer chain, wherein the carrier is hydrophobic and the hydrophilic polymer chain is connected both to the carrier and to the NR22 group and the molecular weight of R1 is about 1,000 to 100,000, R2, may be identical or different, is a hydrogen atom, an alkyl group, an aryl group, and, however, NR22 may form a pyridine ring, an acridine ring or a quinoline ring, X is a halogen atom, R6COO−, SO4−, CN−, NO3− or SCN−, wherein R6 is an alkyl group or an aryl group, R3 is an unsaturated hydrocarbon ligand, n is an integer from 0 to 3,
• from a nitrogen-containing compound represented by the general formula (chemical formula 1)
• R1NR22,
• wherein R1 and R2 are the same as defined above, and
• a platinum compound represented by the general formula
• M(PtX3-nR3n)m,
• wherein M is an alkali metal, an alkaline earth metal or a quaternary ammonium ion represented by N+R54, wherein R5, may be identical or different, is a hydrogen atom, an alkyl group or an aryl group, m is an integer indicating the electrical charge number of M, and X, R3 and n are the same as defined above, and
• (b) allowing the platinum complex to react with a reducing agent to produce the resin-supported platinum cluster complex containing a platinum particle core with an average diameter of from 1 nm to 10 nm.